@article {1999,
	title = {Extremal faces of the range of a vector measure and a theorem of Lyapunov},
	journal = {J. Math. Anal. Appl. 231 (1999) 301-318},
	number = {SISSA;4/98/M},
	year = {1999},
	publisher = {Elsevier},
	doi = {10.1006/jmaa.1998.6260},
	url = {http://hdl.handle.net/1963/3370},
	author = {Stefano Bianchini}
}
